#include <my_head.h>
int main(int argc, char const *argv[])
{
    FILE *fp = fopen("hell.txt","a");
    if(NULL == fp)
        ERR_LOG("fopen error");
    fputs("beijing",fp);
    char buff[10] = "45678";
    fputs(buff,fp);
    fclose(fp);
    return 0;
}
